Tin spraying yog ib kauj ruam thiab txheej txheem hauv cov txheej txheem pov thawj PCB.CovPCB pawg thawj coj saibyog immersed nyob rau hauv lub molten solder pas dej ua ke, thiaj li hais tias tag nrho cov exposed tooj liab qhov chaw yuav tsum tau them nrog solder, thiab ces tus tshaj solder ntawm lub rooj tsavxwm yog muab tshem tawm los ntawm ib tug kub kub cutter.tshem tawm.Lub zog soldering thiab kev ntseeg siab ntawm lub rooj tsav xwm Circuit Court tom qab txau cov tin zoo dua.Txawm li cas los xij, vim nws cov yam ntxwv ntawm cov txheej txheem, qhov chaw tiaj tus ntawm cov tshuaj tsuag tshuaj tsuag tsis zoo, tshwj xeeb tshaj yog rau cov khoom siv hluav taws xob me xws li BGA pob, vim qhov chaw vuam me me, yog tias qhov flatness tsis zoo, nws yuav ua rau muaj teeb meem xws li. luv circuits.
qhov zoo:
1. Lub wettability ntawm cov khoom thaum lub sij hawm soldering txheej txheem yog zoo dua, thiab soldering yog yooj yim dua.
2. Nws tuaj yeem tiv thaiv cov tooj liab uas raug corroded los yog oxidized.
tsis txaus:
Nws tsis tsim nyog rau cov pins uas muaj qhov khoob zoo thiab cov khoom me me, vim tias qhov flatness ntawm lub tin-txheej board tsis zoo.Nws yog ib qho yooj yim los tsim cov tin hlaws hauv PCB pov thawj, thiab nws yog ib qho yooj yim los ua luv luv Circuit Court rau cov khoom uas zoo sib txawv pins.Thaum siv nyob rau hauv ob-sided SMT txheej txheem, vim hais tias lub thib ob sab tau undergone kub reflow soldering, nws yog ib qho yooj yim heev rau re-melt lub tin spray thiab tsim tin hlaws dai los yog cov dej zoo sib xws uas cuam tshuam los ntawm lub ntiajteb txawj nqus mus rau hauv spherical tin ntsiab lus. poob, ua rau saum npoo yuav txawm ntau unsightly.Flattening nyob rau hauv lem cuam tshuam cov teeb meem vuam.
Tam sim no, qee qhov kev pov thawj PCB siv cov txheej txheem OSP thiab cov txheej txheem immersion kub los hloov cov txheej txheem tin;Kev tsim kho thev naus laus zis kuj tau ua rau qee lub tsev tsim khoom siv cov txheej txheem immersion tin thiab immersion nyiaj, ua ke nrog cov qauv ntawm cov hmoov lead-dawb nyob rau xyoo tas los no, kev siv cov txheej txheem tin spraying tau raug txwv ntxiv.